Tread portion of an automobile tire



FIG .1 is a front view of a tread portion of an automobile tire;

FIG. 2 is a perspective view thereof;

FIG. 3 is a left side view thereof; and,

FIG. 4 is a fragmentary enlarged view showing the details of the treadportion thereof.

Broken lines in the drawing figures are intended to show environmentalstructure only, and form no part of the claimed design.

The broken lines showing the area between the tread portions is for thepurpose of illustrating portions of the tire and form no part of theclaimed design.

The ornamental design for a tread portion of an automobile tire, asshown and described.